Firearm magazine



FIG. 1 is a rear, top, left perspective view of the firearm magazine embodying the new design;

FIG. 2 is a front, bottom, right perspective view thereof;

FIG. 3 is a right side view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a front view thereof;

FIG. 6 is a rear view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The broken lines in FIGS. 1-8 and the areas within them form no part of the claimed design. The broken lines immediately adjacent to shaded portions depict the boundaries of the claim and form no part thereof. 

CLAIM The ornamental design for a firearm magazine, as shown and described. 